128901502 has 16 divisors (see below), whose sum is σ = 196549920. Its totient is φ = 63389952.

The previous prime is 128901481. The next prime is 128901523. The reversal of 128901502 is 205109821.

It is an interprime number because it is at equal distance from previous prime (128901481) and next prime (128901523).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62199 + ... + 64237.

It is an arithmetic number, because the mean of its divisors is an integer number (12284370).

Almost surely, 2^128901502 is an apocalyptic number.

128901502 is a deficient number, since it is larger than the sum of its proper divisors (67648418).

128901502 is a wasteful number, since it uses less digits than its factorization.

128901502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2547.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 128901502 is about 11353.4797309019. The cubic root of 128901502 is about 505.1488003820.

The spelling of 128901502 in words is "one hundred twenty-eight million, nine hundred one thousand, five hundred two".